JPH0521712U - Lower Locking Device for Folding Umbrella - Google Patents

Abstract

(57) [Summary] [Purpose] A locking piece that locks the lower wheel in the open position is easy to assemble, and the locking action is reliable. Shall be blocked. [Structure] Locking piece 6 for protruding the upper half into the lower wheel 5
Was supported by the lower potter's wheel. Locking protrusion 6a at the upper end of the locking piece
Is formed in the uppermost canopy handle tube 1 in the state of opening the umbrella, and the recess 8 or the window in which the locking protrusion is projected in the state of the umbrella handle extended and closed is provided at the top or the next stage. It was formed into an umbrella handle tube. A cam slope 6b that allows the umbrella handle to be shortened is provided on the locking piece.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention is a foldable Western umbrella provided with an umbrella handle formed by telescopically fitting at least three umbrella handle tubes whose outer diameters sequentially increase from the upper side to the lower side. Related to a lower locker locking device that locks the lock to the umbrella handle to prevent it from closing and extends the handle to prevent the lower lock from opening even if the umbrella is inverted while the umbrella is closed. It is a thing.

[0002]

[Prior Art]

 In the folding Western umbrella with an umbrella handle as described above, the uppermost umbrella handle tube has a very small diameter, and there is a large gap between it and the lower wheel that is located on the umbrella handle tube in the open state. To do. Therefore, in the structure in which the elastic locking piece that is installed in the uppermost umbrella handle tube and projects the locking protrusion from the window hole of the umbrella handle tube to lock the lower lock at the open umbrella position so that it cannot be closed, Special measures are needed to securely lock the lower wheel. That is, for example, in the folding Western umbrella disclosed in Japanese Utility Model Laid-Open No. 1-74818, the lower lock at the open umbrella position is placed on the uppermost umbrella handle tube in the direction opposite to the direction in which the locking projection of the locking piece projects. An elastic biasing piece to be moved is separately provided in the uppermost umbrella handle tube so that the lower protrusion can be securely locked by the locking protrusion so that the lower locker is moved in one direction on the uppermost handle. It is supposed to be put to one side.

[0003]

[Problems to be solved by the device]

 The elastic locking piece for locking the lower wheel, or the elastic biasing piece as in the above-mentioned known example, is installed in the uppermost umbrella handle tube because the umbrella handle tube has a small diameter. Then it is difficult to assemble. In addition, the conventional general structure that uses the elastic locking piece that locks the lower lock in the open state by the locking protrusion that is housed in the uppermost small-diameter umbrella handle tube in the shortened state of the umbrella handle is the reliable lock of the lower lock. For stopping, an extra member such as the elastic biasing piece in the above-mentioned known example is additionally required.

Therefore, the present invention solves the above-mentioned problems by locking the lower rocker against the umbrella handle in the open umbrella state by the locking piece supported by the lower rocker, and also the locking piece. This prevents the lower rocker from opening in order to prevent the umbrella bone from opening unintentionally even if the umbrella is carried upside down when the umbrella handle is extended and closed. An object of the present invention is to provide a new lower locking device for a folding western umbrella, which is designed so that the locking pieces do not hinder the movement of the lock.

[0005]

[Means for Solving the Problems]

 Therefore, as shown in the accompanying drawings, the present invention provides a folding western umbrella having an umbrella handle composed of the above-mentioned umbrella handle tubes 1, 2, 3 and 4, which has a locking projection 6a at the upper end thereof. The locking piece 6 projecting into the lower wheel 5 through the window hole 5a formed in the lower wheel 5 is urged to rotate in the direction in which the upper half part thereof projects into the lower wheel 5 and turned to the lower wheel 5. Support freely. Then, in the opened state, the locking projection 6a is inserted to form a window hole 7 in the uppermost umbrella handle tube 1 for preventing the closing movement of the lower lock 5 with respect to the umbrella handle, while the umbrella handle is extended and closed. The recess 7 or the window hole 9 for preventing the opening movement of the lower wheel 5 with respect to the umbrella handle by the engaging protrusion 6a is formed in the uppermost umbrella handle tube 1 or the next stage umbrella handle tube 2. .. Further, the locking piece 6 is pushed below the locking projection 6a by the upper end edge of the umbrella handle tube that contracts when the umbrella handle shortens so that the locking projection 6a moves in the opposite direction. Further, a cam slope 5b for rotating the locking piece 6 is formed.

[0006]

[Action]

 In the opened state illustrated in FIGS. 2, 4 and 9, respectively, as illustrated in FIG. 2, the locking projection 6a of the locking piece 6 projects into the window hole 7 of the uppermost canopy stem tube 1, and as a result, The lower lock 5 is constrained by the umbrella handle tube 1 via the locking piece 6 so as not to be able to move downward, and the opened state is maintained. To close the umbrella from this open state, push the lower half of the locking piece 6 with the fingers of the hand to rotate the locking piece 6 so that the locking projection 6a is pulled out from the window hole 7, and then the umbrella handle This is done by pulling the lower wheel 5 down. In the umbrella handle extended and closed umbrella state illustrated in FIGS. 1, 7 and 10, the locking projection 6a of the locking piece projects into the recess 8 of the umbrella handle as illustrated in FIG. As illustrated in each figure, the lower protrusion 5 is prevented from opening and moving on the umbrella handle through the locking piece 6 as a result of protruding into the window hole 9 of the umbrella handle. Even if the western umbrella is inverted, the umbrella bone will not open. Whether the recess 8 or the window 9 is formed in the uppermost umbrella handle tube 1 or in the next stage umbrella handle tube 2 is designed according to the design of the folded western umbrella, and the lower wheel 5 is the best when the umbrella handle is extended and closed. It depends on whether it is located on the upper umbrella handle tube 1 or the next umbrella handle tube 2.

To open the umbrella from the extended and closed state of the umbrella handle, as shown in FIG. 1, the locking protrusion 6a is pushed into the recess 8 of the umbrella handle as illustrated in FIG. This can be done by rotating so that it will come out of the concave portion 8 and pushing up the lower locker 5 as it is. Also, as illustrated in each of FIGS. In the structure of pushing in, the lower half portion of the locking piece 6 is pushed by the finger of the hand, and the locking projection 6a is rotated by this to pull the locking projection 6a out of the window hole 9, It is done by pushing up. When the umbrella handle is shortened from the umbrella handle extended closed state, the umbrella handle shortens until the upper end edge of the umbrella handle tube 2 comes into contact with the cam slope 6b of the locking piece 6 as illustrated in FIG. From that point, the locking piece 6 is rotated by the upper edge of the umbrella handle tube via the cam slope 6b so that the locking projection 6a comes out of the recessed groove 8 of the umbrella handle or the window hole 9 which replaces it. In this way, the locking piece 6 is sequentially rotated by the lower canopy shaft tube having a larger diameter in this way, thereby shortening the canopy handle without being obstructed by the locking piece 5, which is illustrated in FIG. It is possible to obtain such an umbrella handle shortened closed umbrella state.

[0008]

【Example】

 FIG. 1-6 shows a first embodiment, and this embodiment relates to an example in which the present invention is implemented in a so-called topless type folding umbrella. As shown in FIG. 4, the umbrella handle is capable of telescopic expansion and contraction of the first umbrella handle tube 1, the second umbrella handle tube 2, the third umbrella handle tube 3 and the fourth umbrella handle tube 4, which gradually increase in outer diameter. The upper umbrella 11 is at the upper end of the first umbrella handle tube 1, and the hand 12 is at the lower end of the fourth umbrella handle tube 4, respectively. It is fixed.

As is customary for topless Western umbrellas, the umbrella mechanism is such that one end of the basal bone 13 is pivotally supported by the other end of the base 13 which is pivotally supported at one end by the upper locker 11, and one end is supported by the lower locker 5. The other end of the pivoted support bone 14 is pivoted in the middle of the main rib 15, and further, one end of the main rib 15 and the middle of the base bone 13 are provided with support ribs 16 whose both ends are pivoted. Each of the above-mentioned umbrella frames 13, 14, 15, 16 is automatically opened / closed and rotated by the vertical movement of the rocker 5 on the umbrella handle. In the illustrated case, a front bone 17 is further pivotally provided at the tip of the rib 15.

As is customary, in the rocker portion for pivotally supporting the rib 14 of the lower wheel 5, as is customary, circumferentially intermittent slits and a circumferential groove 5c for receiving the wire 18 passing through the through hole at the end of the rib 14 are formed. As shown clearly in FIG. 3, the same vertical slits 5b are formed between the two vertical slits in the wheel portion, and the slits 5b of the locking pieces 6 are formed. It is supposed to support the middle. The window hole 5a is continuous with the slit 5b and is formed in the lower wheel 5 as a vertically long one.

Similarly, as clearly shown in FIG. 3, the locking piece 6 is manufactured by folding a metal plate in two, and is formed to have the locking projection 6a and the cam slope 6b described above. As shown in FIG. 2, the locking projection 6a engages with the lower edge of the window hole 7 of the first umbrella handle tube 1 at the lower edge thereof so that the lower locker 5 in the open position is attached to the first umbrella handle tube 1. As shown in FIG. 1, it is engaged with the upper edge of the concave portion 8 of the first umbrella handle tube 1 by the upper edge which is slightly rounded as shown in FIG. It is supposed to prevent the opening movement of the lower wheel 5 at Engagement between the upper edge of the locking projection 6a and the upper edge of the recess 8 is a so-called temporary stop, and even when the umbrella is inverted in the umbrella handle extended closed state shown in FIG. At that time, it is prevented from moving toward the upper rocker 11 on the lower side and opening the umbrella bone, but when pushing down the lower rocker 5 on the umbrella handle from the state of FIG. 1 to open the umbrella, As described above, the locking piece 6 is rotated by the push-up force of the lower wheel 5 applied to the locking piece 6, so that the locking projection 6 a comes out of the recess 8.

The lower lock 5 of the locking piece 6 is supposed to be supported by using the wire 18, and a wire insertion part is inserted in the middle of the locking piece 6 to be supported by the slit 5b as shown in FIG. A hole 6c is formed. The lower end of the locking piece 6 is formed as a dish-shaped operation portion 6d. The locking piece 6 has its middle part supported by the slit 5b of the lower lock 5, is inserted into the wire insertion hole 6c, and is then pulled up with both free ends as shown in FIG. Therefore, it is supposed that the lower bones 5 are supported simultaneously with the ribs 14. The locking piece 6 is designed so that when the wire 18 takes a perfect circle in the circumferential groove 5c of the lower wheel 5, the locking projection 6a largely projects into the lower wheel 5, as shown in FIG. From that state, if the locking piece 6 is rotated so that the locking projection 6a at the upper end moves away from the umbrella handle, the wire 18 is deformed downward in the slit 5b, which causes the wire 18 to deform. It is supposed that the restoring force generated at 18 urges the upper half portion of the locking piece 6 to rotate in the direction in which it projects into the lower lock 5. Therefore, the urging force for urging the locking piece 6 to rotate in the direction in which the upper half of the locking piece 6 penetrates into the lower wheel 5 is given by the wire 18 itself for supporting the locking piece. In order to increase the biasing force for rotating the locking piece, a coil spring 19 is attached to the inner surface of the operation portion 6d at the lower end of the locking piece 6, and the coil spring 19 is brought into contact with the outer surface of the lower wheel 5. ..

The other parts of the first embodiment are configured as described above, and the other structure of the folding umbrella provided with this embodiment is known. The operation of the first embodiment is the same as that described above as the operation of the invention, and when the umbrella handle is further shortened from the state of FIG. 6, the second umbrella handle tube 2 is shortened and then the third umbrella handle tube is shortened. When the cam slope 6b is pushed by the upper edge of 3 and then the upper edge of the fourth umbrella handle tube 4, the locking pieces 6 are sequentially rotated so as to allow the umbrella handle to be shortened.

FIG. 7 shows a second embodiment. In this embodiment, the window hole 9 is formed in the first umbrella handle tube 1 instead of the recess 8 in the first embodiment, and the other structure is The structure of the folding umbrella is the same as that described in the first embodiment. According to the second embodiment, it is necessary to operate the locking piece 6 by the operation portion 6d when opening the umbrella, but the umbrella bone release preventing action is surely achieved when the umbrella is inverted while the umbrella handle is extended and closed. Becomes

FIGS. 8-10 show a third embodiment. In this embodiment, the skeleton 14 is of a telescopic type in which the first skeleton 14A and the second skeleton 14B are fitted to each other in an extendable manner. It relates to an example of implementing this plan for a topless folding western umbrella. The umbrella handle is composed of the first to fourth umbrella handle tubes 1-4 as described above.

[0016] The skeleton retractable folding western umbrella itself is known as disclosed, for example, in Japanese Examined Patent Publication No. 63-52881 and Japanese Utility Model Publication No. 1-23287, but the folding according to the third embodiment. Since the tatami mat umbrella has a structure different from that of the known one, the point will be described first. As shown in FIGS. 8-10, the structure in which the end of the skeleton 13 is connected to the second skeleton 14B is the same as that of the above-mentioned known example, but the lower rocker 5 has a rocker portion pivotally supporting the end of the first skeleton 14A. In addition to 5A, another wheel portion 5B is formed on the upper side thereof. Then, a drive bone 21 having one end pivotally supported is provided to the other rocker portion 5B, and the other end of the drive bone 21 is used as a base bone 13 and is located above the pivot point of the support bone 16 with respect to the base bone 13. It is pivotally connected at the side. When the lower umbrella 5 is pulled down on the umbrella handle from the open state shown in FIG. 9 to close the umbrella, the basic frame 13 is rotated by the drive bone 21 to close the umbrella. The second support frame 14B is shortened along the first support frame 14A by the base frame 13 that is pivotally closed and the umbrella is pivotally closed, and after the state of FIG. The state is obtained. On the contrary, when the lower lock 5 is pushed up on the umbrella handle from the umbrella handle extended and closed state shown in FIG. 10 to open the umbrella, the base bone 13 is rotated via the drive bone 21. The other umbrella frame is also rotated and opened and rotated. The second support frame 14B is extended and moved along the first support frame 14A by the base frame 13, and after the state of FIG. The state is obtained.

In such a skeleton retractable topless foldable umbrella, the locking piece 6 similar to that described above is attached to the wheel receiving portion 5A for skeleton pivot through the wire 18 similar to that described above. I have you support it. A window hole 7 through which the locking projection 6a of the locking piece 6 projects in the open umbrella state of FIG. 9 is provided in the first umbrella handle tube 1 as shown in FIG. In the folding Western umbrella shown in FIGS. 8-10, as shown in FIG. 10, the position of the lower wheel 4 is set on the second umbrella handle tube 2 when the umbrella handle is extended and closed, and the locking protrusion is in the same state. A window hole 9 into which 6a projects is formed in the second umbrella handle tube 2. The structure and operation of the other parts of the third embodiment are the same as those described above.

[0018]

[Effect of the device]

 In this invention, since the lower rocker 5 is provided with the locking piece 6 for locking the lower lock 5 to the umbrella handle in the open state, the locking piece provided in the uppermost umbrella handle tube 1 having a small diameter. Unlike the above, the locking projection 6a can be formed into a shape and size that can obtain a reliable locking action without being restricted by the small diameter umbrella handle tube 1, and an extra member is not required. The structure in which the locking piece 6 is arranged not in the small diameter umbrella handle tube 1 but in the lower wheel 5 facilitates the assembly of the folding umbrella. Nevertheless, the cam slope 6b formed on the locking piece 6 below the locking projection 6a allows the locking piece 6 to rotate to allow the shortening movement of the umbrella handle. Therefore, the uppermost umbrella handle tube The locking piece 6 provided on the outside of 1 does not cause a problem of preventing the shortening movement of the umbrella handle from the umbrella handle extended closed state. In addition, since the locking projection 6a of the locking piece 6 also prevents the opening movement of the lower wheel 5 from the umbrella handle extended and closed state, the folding western umbrella in the same state can be carried in an inverted state. The need to provide a separate means to prevent the opening of the umbrella bone will be eliminated.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view in which a main part of a foldable western umbrella equipped with a first embodiment is illustrated in an umbrella-handle extended and closed state in an enlarged manner compared to the actual state.

FIG. 2 is a partially longitudinal front view showing, in an open state, only members of main parts of the folding western umbrella shown in FIG.

FIG. 3 is a perspective view showing several members of the folding umbrella shown in FIG. 1 in an exploded state in an enlarged manner compared to an actual state.

FIG. 4 is a partially omitted front view showing the folded western umbrella of FIG.

FIG. 5 is a partially omitted front view showing the folded Western umbrella of FIG. 1 in a state in which the umbrella handle is shortened and closed, and is shown in a more reduced size than it actually is.

FIG. 6 is a partially longitudinal enlarged front view of the essential part of the umbrella for showing the operation of the first embodiment.

FIG. 7 is a front view, partly omitted and partly vertical, showing a main part of a folding western umbrella equipped with a second embodiment in an enlarged manner from the actual part.

FIG. 8 is a partially omitted front view showing a main portion of a folding western umbrella equipped with a third embodiment in a state in which the opening and closing umbrella is in the middle, and is shown in a reduced size compared to an actual state.

FIG. 9 is a partially omitted front view showing the folded western umbrella of FIG. 8 in an opened state and in a reduced size compared to an actual state.

FIG. 10 is a partially cutaway front view of the folding Western umbrella of FIG. 8 with the umbrella handle extended and closed in a state in which the illustration is enlarged and illustrated.

[Explanation of symbols]

 1 1st umbrella handle pipe 2 2nd umbrella handle pipe 3 3rd umbrella handle pipe 4 4th umbrella handle pipe 5 Lower lock 5a Window hole 5b Vertical slit 6 Locking piece 6a Locking protrusion 6b Cam slope 6c Wire insertion hole 6d Operation Part 7 Window hole 8 Recess 9 Window hole 18 Wire 19 Coil spring

Claims (1)

[Scope of utility model registration request] 1. An umbrella handle formed by telescopically fitting at least three umbrella handle tubes (1, 2, 3, 4) whose outer diameters are sequentially increased from the upper stage side to the lower stage side. In a folding western umbrella, a locking piece (6) which has a locking projection (6a) at the upper end and which projects into the lower rocker through a window hole (5a) having an upper half portion formed in the lower rocker (5) is provided. The upper half part is urged to rotate in the direction of the lower roller (5) so as to be rotatably supported by the lower roller (5). While forming a window hole (7) in the uppermost umbrella handle tube (1) to prevent the closing movement of the lower wheel (5) with respect to the handle, the locking protrusion (6a) is inserted in the umbrella handle extended closed state. The recess (8) or the window (9) for preventing the lower umbrella (5) from opening and moving with respect to the umbrella handle is provided with the uppermost umbrella handle tube (1) or the next umbrella handle tube ( 2), and further on the locking piece (5) below the locking projection (6a), the locking projection (6) is pushed by the upper end edge of the umbrella handle tube which shortens when the umbrella handle shortens. A lower locking device for locking, characterized in that a cam slope (6b) for rotating the locking piece (6) is formed so that (6a) moves in the direction opposite to the umbrella handle.